Which of the following statements regarding IS-IS Hello packets are true? Choose two answers.
Different types of Hello packets are exchanged on point-to-point networks than on broadcast networks.
L1/L2 Hello packets are exchanged on broadcast links.
Different L1 and L2 Hello packets are exchanged on broadcast links.
By default, Hello packets are sent every 5 seconds, and the timeout to declare a neighbor down is 15 seconds.
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